Hi all, When ants have gotten into one of my pots, I have on occasion used granular imidacloprid mixed into the surface of the potting mix. If the potting mix is more water-retentive, just drenching with a solution of imidacloprid ought to do the trick. Jim Shields At 08:18 PM 8/2/2010 +0200, you wrote: >.......with ants is finding their nest >with a few thousend pots it is almost impossible to find >many rare plants almost died or died because the drainage is super >and you don't see it till the plant is hanging down >I tried many solutions but still till now there is not a best solution >I tried roxasect and many other who attract ants >nothing works really > >Roland ************************************************* Jim Shields USDA Zone 5 Shields Gardens, Ltd. P.O. Box 92 WWW: http://www.shieldsgardens.com/ Westfield, Indiana 46074, USA Tel. ++1-317-867-3344 or toll-free 1-866-449-3344 in USA